While the pastry is in the freezer, heat olive oil on medium high heat until it slightly shimmers.
Reduce heat to medium and add garlic and stir for about 30 seconds, then add chopped onion and sauté until the onion has softened, about 7 minutes.
Add the bell peppers, stir to combine, then cover and cook about 8 minutes, or until the peppers are tender. Uncover, remove from the heat and stir in the paprika and Asian chili sauce or sriracha sauce, stirring for about 2-3 minutes.
Return to heat and add crab meat and stir gently until the crab has been fully combined with the pepper mixture and has been warmed through. Season with salt and pepper. Set aside until ready to fill the baked pastry.
Remove pastry from freezer and bake for about 10-12 minutes, or until the pastry sheet is golden brown.